You can only do this once, so if you lose, you can only get the promotional card from the Challenge Cup After you have defeated your third club, then the Challenge Cup will open
Shop the One Piece Card Game at The People's Card Shop in Las Vegas, Nevada
If you tap the Battle tab , then tap the Guide icon , and scroll down to the For Advanced Players section, you will see that there are additional missions that reward Item and Supporter cards
The "Might and Magic" Starter Deck is an Amethyst/Steel build and "Tactical Teamwork" is an Amber/Sapphire deck
As an aside, my Kobold deck back in the day featured Most Magic sets aren't able to reprint cards with specific references from Adventures in the Forgotten Realms or Commander Legends: Battle for Baldur's Gate , our two Dungeons & Dragons sets
My next experiment in this archetype is trying out cards that provide you with bursts of advantage in the mid-game but help take over as the game progresses